/***************************************************************************
* Copyright (C) 2009-2021 by Ilya Kotov *
* forkotov02@ya.ru *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#include <QRegularExpression>
#include <QFileInfo>
#include <QStringList>
#include <QProcess>
#include "mplayermetadatamodel.h"
MplayerMetaDataModel::MplayerMetaDataModel(const QString &path)
: MetaDataModel(true, MetaDataModel::CompletePropertyList),
m_path(path)
{}
MplayerMetaDataModel::~MplayerMetaDataModel()
{}
QList<MetaDataItem> MplayerMetaDataModel::extraProperties() const
{
QList<MetaDataItem> ep;
ep << MetaDataItem(tr("Size"), QFileInfo(m_path).size ()/1024, tr("KiB"));
//prepare and start mplayer process
QStringList args = { "-slave", "-identify", "-frames", "0", "-vo", "null", "-ao", "null", m_path };
QProcess mplayer_process;
mplayer_process.start("mplayer", args);
mplayer_process.waitForFinished();
QString str = QString::fromLocal8Bit(mplayer_process.readAll()).trimmed();
const QStringList lines = str.split("\n");
//mplayer std output parsing
QRegularExpression rx_id("^(ID_.*)=(.*)");
QMap<QString, QString> params;
for(const QString &line : qAsConst(lines))
{
QRegularExpressionMatch match = rx_id.match(line.trimmed());
if(match.hasMatch())
params.insert(match.captured(1), match.captured(2));
}
//general info
ep << MetaDataItem(tr("Demuxer"), params["ID_DEMUXER"]);
//video info
ep << MetaDataItem(tr("Video format"), params["ID_VIDEO_FORMAT"]);
ep << MetaDataItem(tr("FPS"), params["ID_VIDEO_FPS"]);
ep << MetaDataItem(tr("Video codec"), params["ID_VIDEO_CODEC"]);
ep << MetaDataItem(tr("Aspect ratio"), params["ID_VIDEO_ASPECT"]);
ep << MetaDataItem(tr("Video bitrate"), params["ID_VIDEO_BITRATE"].toInt() / 1000, tr("kbps"));
ep << MetaDataItem(tr("Resolution"), QString("%1x%2").arg(params["ID_VIDEO_WIDTH"]).arg(params["ID_VIDEO_HEIGHT"]));
ep << MetaDataItem(tr("Audio codec"), params["ID_AUDIO_CODEC"]);
ep << MetaDataItem(tr("Sample rate"), params["ID_AUDIO_RATE"], tr("Hz"));
ep << MetaDataItem(tr("Audio bitrate"), params["ID_AUDIO_BITRATE"].toInt() / 1000, tr("kbps"));
ep << MetaDataItem(tr("Channels"), params["ID_AUDIO_NCH"]);
return ep;
}
